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Plumber Vetting Checklist

Need a plumber fast? Use this free checklist to compare options without guessing. It helps you ask the right questions, spot red flags, and stay in control even when you are stressed.

Plumber Vetting Checklist

Download the free PDF

What to do first

  1. If water is actively flooding, shut off the water main if you can do so safely.
  2. If there is a gas smell or water near live electricity, leave the area and call your local emergency number first.
  3. Then use this checklist to vet any plumber before you agree to work.
  4. If you want help finding a local option, get matched for free.

This page gives general information only. MainLine Match is a free matching service, not a plumbing company, and we do not perform plumbing work.

What to do first

What this checklist helps you check

This download is for people who need to hire quickly but still want basic safety checks. It covers the main things to ask before you let anyone start: license, insurance, written price, what the visit includes, and what counts as an emergency call.

It also helps you notice common warning signs like vague pricing, pressure to approve a big repair right away, cash-only demands, or someone refusing to show proof of license or insurance. Those are reasons to slow down and ask more questions.

You can use it for a burst pipe, no hot water, a bad clog, sewage backup, no water, or a major leak. It is also useful if you are comparing more than one plumber and want to keep your notes in one place.

How to use it during a busy repair

Print it, save it on your phone, or read it while you are on the call. Write down the plumber’s name, phone number, company name, and what they say is included.

Before anyone starts work, ask for the price in writing when possible. The exact cost depends on the problem, the time of day, parts, labor, and your area. After-hours service usually costs more, and any range is only a range — not a quote.

You stay in control: you choose who to hire, confirm the price before work starts, and confirm the work is done before you pay the final amount.

What to ask a plumber

Use the checklist to ask simple, direct questions:

  • Are you licensed and insured in my area?
  • What is the service call fee, if any?
  • What is the price range for this type of problem?
  • What parts or extra labor could change the cost?
  • Will you give me the total in writing before work starts?
  • Is this an emergency rate or an after-hours rate?

If the answers are unclear, rushed, or different from what was first said, that is a red flag. A careful plumber should be able to explain the basics in plain words.

Common red flags to watch for

The checklist also reminds you to watch for signs of overcharging or a scam. These include scare tactics, vague pricing, no license, no insurance, pressure to approve a huge repair on the spot, and requests to pay in ways that make it hard to keep a record.

A fair, licensed plumber should be willing to identify the problem, explain options, and let you see the price before the work begins. If anything feels off, you can pause and ask for another opinion.

If you are still searching, our vetting guide explains the same steps in more detail.

Who it helps

This tool is for homeowners, renters, landlords, and family members helping from a distance. It is especially useful for new immigrants and non-native English speakers because it uses short, plain questions that are easy to follow under stress.

It can also help if you are calling from a phone with low battery, trying to keep a flooded room under control, or comparing plumbers late at night. The goal is simple: help you make a calmer choice, faster.

If you are ready to search now, get matched and we will connect you with licensed, insured emergency plumbers near you for free.

In plain English

This free checklist helps you quickly check a plumber’s license, insurance, price, and red flags so you can choose more safely during a plumbing emergency.

Common questions

What is in the free plumber vetting checklist?

It includes the basic questions to ask before hiring: license, insurance, written price, emergency fees, what is included, and common red flags like vague pricing or pressure to agree fast.

Can I use it in an emergency?

Yes. It is designed for stressful situations when you need to compare plumbers quickly and avoid overpaying. It does not replace calling for help, but it can help you ask the right questions.

Does MainLine Match charge me to use this or get matched?

No. MainLine Match is free for the household. We are a matching service, not a plumbing company, and we do not do the plumbing work ourselves.

Do the checklist and the cost ranges guarantee a price?

No. Any cost range is only a general guide. The real number depends on the problem, parts, time of day, and your area, so always get the price in writing first.

MainLine Match is a free matching service, not a plumbing company or licensed plumber, and does not perform plumbing work or give plumbing, structural, electrical, gas-safety, or legal advice. The information here is general and educational. In a life-threatening emergency, or if you smell gas or see water near live electricity, leave and call your local emergency number first. Always hire licensed, insured plumbers, verify the license and insurance yourself, and confirm the price in writing before work starts. Costs and arrival times vary by problem, time of day, and your area; confirm all details directly with a licensed plumber.

Got a plumbing emergency right now?

Shut off your water main first. Then get matched, free, with a licensed 24/7 plumber near you. You compare and choose who to hire — and you confirm the price before any work starts.